The passenger seat occupant detection system has a fault.
Informational only. Consult a qualified mechanic.
Passenger airbag may not enable properly. Have the seat sensor inspected.
The B0081 OBD-II diagnostic trouble code (DTC) indicates: passenger presence system. This is a medium-severity body code that your vehicle's onboard diagnostics system triggers when the passenger seat occupant detection system has a fault. If your check engine light is on with this code, the vehicle is generally safe to drive, but you should have it inspected soon.
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